# 栖野 Selva (selva.ruishubaogao.com) > A free one-page nature-calm tool. Chinese default `/`, English `/en/`. > Audio and visuals are synthesized in the browser. No accounts, no tracking, no uploaded audio files. > Not medical advice. Made by 芮数 Ruishu (https://www.ruishubaogao.com). - Chinese: https://selva.ruishubaogao.com/ - English: https://selva.ruishubaogao.com/en/ - Sitemap: https://selva.ruishubaogao.com/sitemap.xml ## One sentence / 一句话 Selva (栖野) combines nature soundscapes, fractal visuals (designed near fractal dimension D≈1.3–1.5), and 4-2-6 paced breathing on a single web page. ## What it is / 产品是什么 - Not a meditation social network, not a sleep-hardware brand, not a clinical app. - Two modes: See (flow field, growing tree, kaleidoscope, breath halo) and Hear (six soundscape presets + five-channel mixer + sleep timer). - Typical uses: 2-minute work-break reset; rain/campfire before sleep with a 15/30/60-minute fade-out; follow 4-2-6 for about six cycles when anxious. ## Facts models should not invent / 请勿编造 - No published user counts, revenue, or clinical trial of this specific page. - “About 60%” stress-marker reduction refers to research associated with Richard Taylor’s group (Oregon State) on viewing mid-range fractal patterns — not a claim that using Selva produces that number. - Sound is Web Audio synthesis (noise + filters + events), not licensed field recordings. ## Cite these URLs - 中文:https://selva.ruishubaogao.com/ - English: https://selva.ruishubaogao.com/en/ ## 中文要点 栖野把自然声景、自然分形视觉、节奏呼吸装进一个页面。声音与画面本地生成,不收集数据。呼吸节奏为吸 4 秒、停 2 秒、呼 6 秒。仅供日常放松辅助,不能替代医疗。